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path: root/drivers/net/wireless/mwifiex
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Diffstat (limited to 'drivers/net/wireless/mwifiex')
-rw-r--r--drivers/net/wireless/mwifiex/usb.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c
index e6d796fabab5..22a5916564b8 100644
--- a/drivers/net/wireless/mwifiex/usb.c
+++ b/drivers/net/wireless/mwifiex/usb.c
@@ -49,6 +49,7 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
49 struct device *dev = adapter->dev; 49 struct device *dev = adapter->dev;
50 u32 recv_type; 50 u32 recv_type;
51 __le32 tmp; 51 __le32 tmp;
52 int ret;
52 53
53 if (adapter->hs_activated) 54 if (adapter->hs_activated)
54 mwifiex_process_hs_config(adapter); 55 mwifiex_process_hs_config(adapter);
@@ -69,16 +70,19 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
69 case MWIFIEX_USB_TYPE_CMD: 70 case MWIFIEX_USB_TYPE_CMD:
70 if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) { 71 if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) {
71 dev_err(dev, "CMD: skb->len too large\n"); 72 dev_err(dev, "CMD: skb->len too large\n");
72 return -1; 73 ret = -1;
74 goto exit_restore_skb;
73 } else if (!adapter->curr_cmd) { 75 } else if (!adapter->curr_cmd) {
74 dev_dbg(dev, "CMD: no curr_cmd\n"); 76 dev_dbg(dev, "CMD: no curr_cmd\n");
75 if (adapter->ps_state == PS_STATE_SLEEP_CFM) { 77 if (adapter->ps_state == PS_STATE_SLEEP_CFM) {
76 mwifiex_process_sleep_confirm_resp( 78 mwifiex_process_sleep_confirm_resp(
77 adapter, skb->data, 79 adapter, skb->data,
78 skb->len); 80 skb->len);
79 return 0; 81 ret = 0;
82 goto exit_restore_skb;
80 } 83 }
81 return -1; 84 ret = -1;
85 goto exit_restore_skb;
82 } 86 }
83 87
84 adapter->curr_cmd->resp_skb = skb; 88 adapter->curr_cmd->resp_skb = skb;
@@ -87,7 +91,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
87 case MWIFIEX_USB_TYPE_EVENT: 91 case MWIFIEX_USB_TYPE_EVENT:
88 if (skb->len < sizeof(u32)) { 92 if (skb->len < sizeof(u32)) {
89 dev_err(dev, "EVENT: skb->len too small\n"); 93 dev_err(dev, "EVENT: skb->len too small\n");
90 return -1; 94 ret = -1;
95 goto exit_restore_skb;
91 } 96 }
92 skb_copy_from_linear_data(skb, &tmp, sizeof(u32)); 97 skb_copy_from_linear_data(skb, &tmp, sizeof(u32));
93 adapter->event_cause = le32_to_cpu(tmp); 98 adapter->event_cause = le32_to_cpu(tmp);
@@ -95,7 +100,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
95 100
96 if (skb->len > MAX_EVENT_SIZE) { 101 if (skb->len > MAX_EVENT_SIZE) {
97 dev_err(dev, "EVENT: event body too large\n"); 102 dev_err(dev, "EVENT: event body too large\n");
98 return -1; 103 ret = -1;
104 goto exit_restore_skb;
99 } 105 }
100 106
101 memcpy(adapter->event_body, skb->data + 107 memcpy(adapter->event_body, skb->data +
@@ -124,6 +130,12 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
124 } 130 }
125 131
126 return -EINPROGRESS; 132 return -EINPROGRESS;
133
134exit_restore_skb:
135 /* The buffer will be reused for further cmds/events */
136 skb_push(skb, INTF_HEADER_LEN);
137
138 return ret;
127} 139}
128 140
129static void mwifiex_usb_rx_complete(struct urb *urb) 141static void mwifiex_usb_rx_complete(struct urb *urb)